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MPX Ammunition OAL Feedback


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You probably already know this, but OAL for a particular gun will

depend on the exact bullet (NOT only bullet Weight, but brand bullet, also).

 

For example, you might have to run 124 gr JHP's at different OAL's depending

on which company made them.

 

Best to take Your Gun, and Your Bullets, and run The Plunk Test to determine

maximum OAL for Your Gun with Your Bullets   :) 

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I use Everglades Ammo plated 124gr RN. That specific bullet I sit at 1.12 but when I used to use Xtreme I was sitting them at 1.15 not problem. The Everglades at 1.15 it was just a hair too long. 

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  • 1 year later...

gotta make sure the ammo is not too long so its not into the lands n grooves.  if your ejecting rounds and pulling the bullet out of the case ammo is likely too long  its getting stuck in the lands n grooves  .  shorten it up a little at a time until your good   drop a round in chamber if it comes out with gravity you should be ok but again you gotta def test fire to be 100%

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gen 2 mpx

 

berrys 147 rnfp 1.100" and didn't feed well. absolutely not in gen 1 mags

 

rmr 147 rnfp 1.100" and would feed well. 50/50 in gen 1 mags.

 

acme 145 round nose. 1.130" and feeds well. have not tried in gen 1 mags.

 

i have polished the feed ramp/s on my gun. i have diamond filed the lips on my mags. i run the exact same load i'm using in my pistols with no consideration given to pcc specifically. i have found that my gun likes round nose bullets better and longer rather than shorter. i have tried other's ammos and some factory ammo but i do not have their oal.

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